Solve the problem using a system of equations.Paul invested three times as much money in an account paying 4% interest than he did in an account paying 2% interest. If the total interest paid was $630, how much did he invest in each?
A. $13,500 at 4%, $5000 at 2%
B. $4500 at 4%, $13,500 at 2%
C. $13,500 at 4%, $4500 at 2%
D. $135 at 4%, $45 at 2%
Answer: C
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Find the area.
A. 19
m2
B. 10
m2
C. 9
m2
D. 21 m2
Use the formula for the general term (the nth term) of a geometric sequence to find the indicated term of the sequence with the given first term, a1, and common ratio, r.Find a11 when a1 = 2, r = 3.
A. 118,102 B. 354,294 C. 118,098 D. 32
Solve the problem.If a satellite is placed in a circular orbit of 300 kilometers above the Earth, what is the equation of the path of the satellite if the origin is placed at the center of the Earth (the diameter of the Earth is approximately 12,740 kilometers)?
A. x2 + y2 = 170,041,600 B. x2 + y2 = 40,576,900 C. x2 + y2 = 90,000 D. x2 + y2 = 44,488,900
Fill in the missing factor.6x2 - 47x - 63 = ( )(x - 9)
A. 6x + 7 B. x - 7 C. 7x + 6 D. x + 6